From patchwork Tue May 28 09:03:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 10964257 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8235B76 for ; Tue, 28 May 2019 09:03:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6EFDF285C5 for ; Tue, 28 May 2019 09:03:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5EDCA285F7; Tue, 28 May 2019 09:03:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id EFBA4285C5 for ; Tue, 28 May 2019 09:03:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=MWu/Q7Y4qGphFgW1VcIME2Ux1XwY1z6RmuWbhcV4Cms=; b=bZOGCSAhqRRJAx d4Iy6eyBPJ7mmbo8qvribq/PzCWWUd/Ebez/Jmxhjg63GOAMjp/KEW1qnIUITMCSVMGPi/tuYB+nA 49Y+zggregNMPSx9fcIc71JmHLgBzqC9X/oCyk6rHBZ1Vsq2xchJ9ZGa/e/2wIdCcMHrVnwZfi59P 7Zxm6f+fAoMq93pqUr52TC5Hu+V79XJLmR5FbCcvKoSRL8C68jzTgj64tY9I7PBBMA9nO8/zGWLtL H/sFDWl/cHaC+0BmtlpxjR/RL0Gj9qTVjuw+xTmT/yplt/iBf0kkt84VyDK+S1uvuGo+9JYjxv/xx TR1FuogPY1qivyDK639Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hVY1P-0005vM-Q4; Tue, 28 May 2019 09:03:51 +0000 Received: from relay12.mail.gandi.net ([217.70.178.232]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hVY16-0005Zl-TW for linux-arm-kernel@lists.infradead.org; Tue, 28 May 2019 09:03:36 +0000 Received: from localhost.localdomain (aaubervilliers-681-1-27-134.w90-88.abo.wanadoo.fr [90.88.147.134]) (Authenticated sender: miquel.raynal@bootlin.com) by relay12.mail.gandi.net (Postfix) with ESMTPSA id BD25320002F; Tue, 28 May 2019 09:03:13 +0000 (UTC) From: Miquel Raynal To: Gregory Clement , Jason Cooper , Andrew Lunn , Sebastian Hesselbarth , Rob Herring , Mark Rutland Subject: [PATCH] arm64: dts: marvell: armada-7040-db: Add USB current regulators Date: Tue, 28 May 2019 11:03:10 +0200 Message-Id: <20190528090310.31774-1-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190528_020333_340597_48055046 X-CRM114-Status: GOOD ( 10.93 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Antoine Tenart , Maxime Chevallier , Nadav Haklai , Thomas Petazzoni , Miquel Raynal , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Armada 7040-db USB ports deliver 500mA by default while they could deliver up to 900mA (usually, for USB3 devices). The board embeds a GPIO controlled regulator on each port which can be configured to deliver each amount of current. Add a vin-supply property to the USB3 Vbus nodes for this purpose. The regulator will be automatically 'enabled', ie. set to limit at 900mA instead of 500mA. Suggested-by: Alex Leibovich Signed-off-by: Miquel Raynal --- .../arm64/boot/dts/marvell/armada-7040-db.dts | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/arch/arm64/boot/dts/marvell/armada-7040-db.dts b/arch/arm64/boot/dts/marvell/armada-7040-db.dts index d20d84ce7ca8..f34ee87a0f56 100644 --- a/arch/arm64/boot/dts/marvell/armada-7040-db.dts +++ b/arch/arm64/boot/dts/marvell/armada-7040-db.dts @@ -28,6 +28,32 @@ ethernet2 = &cp0_eth2; }; + cp0_exp_usb3_0_current_regulator: gpio-regulator { + compatible = "regulator-gpio"; + regulator-name = "cp0-usb3-0-current-regulator"; + regulator-type = "current"; + regulator-min-microamp = <500000>; + regulator-max-microamp = <900000>; + gpios = <&expander0 4 GPIO_ACTIVE_HIGH>; + states = <500000 0x0 + 900000 0x1>; + enable-active-high; + gpios-states = <0>; + }; + + cp0_exp_usb3_1_current_regulator: gpio-regulator { + compatible = "regulator-gpio"; + regulator-name = "cp0-usb3-1-current-regulator"; + regulator-type = "current"; + regulator-min-microamp = <500000>; + regulator-max-microamp = <900000>; + gpios = <&expander0 5 GPIO_ACTIVE_HIGH>; + states = <500000 0x0 + 900000 0x1>; + enable-active-high; + gpios-states = <0>; + }; + cp0_reg_usb3_0_vbus: cp0-usb3-0-vbus { compatible = "regulator-fixed"; regulator-name = "usb3h0-vbus"; @@ -35,6 +61,7 @@ regulator-max-microvolt = <5000000>; enable-active-high; gpio = <&expander0 0 GPIO_ACTIVE_HIGH>; + vin-supply = <&cp0_exp_usb3_0_current_regulator>; }; cp0_reg_usb3_1_vbus: cp0-usb3-1-vbus { @@ -44,6 +71,7 @@ regulator-max-microvolt = <5000000>; enable-active-high; gpio = <&expander0 1 GPIO_ACTIVE_HIGH>; + vin-supply = <&cp0_exp_usb3_1_current_regulator>; }; cp0_usb3_0_phy: cp0-usb3-0-phy {